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88240484809 = 127223392
BaseRepresentation
bin101001000101110001…
…0101111000111001001
322102202122001002001001
41102023202233013021
52421204031003214
6104312003455001
76242452513441
oct1221342570711
9272678032031
1088240484809
11344714a9304
1215127687461
138423438629
1443b1363121
152466b6dc74
hex148b8af1c9

88240484809 has 9 divisors (see below), whose sum is σ = 88978804077. Its totient is φ = 87508249164.

The previous prime is 88240484777. The next prime is 88240484833. The reversal of 88240484809 is 90848404288.

The square root of 88240484809 is 297053.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 88240484809 - 25 = 88240484777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88240484809.

It is not an unprimeable number, because it can be changed into a prime (88240484609) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37724562 + ... + 37726900.

Almost surely, 288240484809 is an apocalyptic number.

88240484809 is the 297053-rd square number.

88240484809 is the 148527-th centered octagonal number.

It is an amenable number.

88240484809 is a deficient number, since it is larger than the sum of its proper divisors (738319268).

88240484809 is an frugal number, since it uses more digits than its factorization.

88240484809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 55.

It can be divided in two parts, 88240 and 484809, that added together give a square (573049 = 7572).

The spelling of 88240484809 in words is "eighty-eight billion, two hundred forty million, four hundred eighty-four thousand, eight hundred nine".

Divisors: 1 127 2339 16129 297053 5470921 37725731 694806967 88240484809